Champion Labs makes the Luberfiner filters for big engines, and these filters have a very good reputation.
David, here's B2 & B2 HPG info from Baldwin:
The B2 and B2-HPG will flow approximately 4 gpm at a pressure differential of 7.5 psi. These filters contain an 8 psi by-pass valve.
-B2 is 22 micron nominal ( Beta @ 2 = 2) and 45 absolute (Beta @ 45 = 75).
-B2-HPG is 8 micron nominal and 23 micron absolute. B2-HPG is limited to 150 psi.
Ken
David, here's B2 & B2 HPG info from Baldwin:
The B2 and B2-HPG will flow approximately 4 gpm at a pressure differential of 7.5 psi. These filters contain an 8 psi by-pass valve.
-B2 is 22 micron nominal ( Beta @ 2 = 2) and 45 absolute (Beta @ 45 = 75).
-B2-HPG is 8 micron nominal and 23 micron absolute. B2-HPG is limited to 150 psi.
Ken